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All results from a given calculation for FOOF (Perfluoroperoxide)

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-349.036464
Energy at 298.15K-349.038254
HF Energy-348.314467
Nuclear repulsion energy131.421992
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CISD/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 1102 1020 0.02      
2 A 942 872 42.01      
3 A 542 502 0.00      
4 A 226 209 0.63      
5 B 977 904 70.56      
6 B 672 622 15.30      

Unscaled Zero Point Vibrational Energy (zpe) 2230.5 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 2063.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CISD/6-311G*
ABC
0.76490 0.19541 0.17213

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.595 1.249 -0.464
O2 0.595 0.261 0.521
O3 -0.595 -0.261 0.521
F4 -0.595 -1.249 -0.464

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.39512.16072.7674
O21.39511.30032.1607
O32.16071.30031.3951
F42.76742.16071.3951

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 106.519 O2 O3 F4 106.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability